volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Intake Air System, Checking For Leaks (False/Unmetered Air)|Page 1146 > < Intake Air System, Checking For Leaks (False/Unmetered Air)|Page 1144
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If engine speed drops or if the short-term gasoline-air ratio changes:

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End diagnosis and switch ignition off.

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Check sprayed part of intake system for leaks, and repair the malfunction.

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Erase DTC memory of Engine Control Module (ECM), Diagnostic mode 4: Reset/erase diagnostic data.  See: Powertrain Management/Computers
and Control Systems/Testing and Inspection/Scan Tool Testing and Procedures/With Generic Scan Tool/Diagnostic Mode 4: Reset/Erase
Diagnostic Data

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Generate readiness code.  See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles
and Readiness Codes

Intake Air System, Checking For Leaks (False/Unmetered Air)|Page 1146 > < Intake Air System, Checking For Leaks (False/Unmetered Air)|Page 1144